<template>
  <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
import echarts from 'echarts'
require('echarts/theme/macarons') // echarts theme
import resize from './mixins/resize'

export default {
  mixins: [resize],
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '350px'
    },
    autoResize: {
      type: Boolean,
      default: true
    },
    chartData: {
      type: Array,
      required: true
    },
    color: {
      type: String,
      default: '#3888fa'
    },
    // name
    name: String
  },
  data() {
    return {
      chart: null
    }
  },
  watch: {
    chartData: {
      deep: true,
      handler(val) {
        this.setOptions(val)
      }
    }
  },
  mounted() {
    this.$nextTick(() => {
      this.initChart()
    })
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    this.chart.dispose()
    this.chart = null
  },
  // 处理数据格式
  // computed: {
  //   title() {
  //     return this.chartData.map(x => x.dt)
  //   }
  // },
  methods: {
    initChart() {
      this.chart = echarts.init(this.$el, 'macarons')
      this.setOptions(this.chartData)
    },
    setOptions({ expectedData, actualData } = {}) {
      this.chart.setOption({
        xAxis: {
          // data: ['周一', '周二', '周三', '周四', '周五', '周六', '周日'],
          data: this.chartData.map(x => x.dt),
          boundaryGap: false,
          axisTick: {
            show: false
          }
        },
        grid: {
          left: 10,
          right: 10,
          bottom: 20,
          top: 30,
          containLabel: true
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross'
          },
          padding: [5, 10]
        },
        yAxis: {
          axisTick: {
            show: false
          }
        },
        legend: {
          // data: ['预计', '实际']
        },
        series: [
          // {
          //   name: '预计', itemStyle: {
          //   // name: this.name, itemStyle: {
          //     normal: {
          //       color: '#FF005A',
          //       lineStyle: {
          //         color: '#FF005A',
          //         width: 2
          //       }
          //     }
          //   },
          //   smooth: true,
          //   type: 'line',
          //   data: expectedData,
          //   animationDuration: 2800,
          //   animationEasing: 'cubicInOut'
          // },
          {
            name: this.name,
            smooth: true,
            type: 'line',
            itemStyle: {
              normal: {
                color: this.color,
                lineStyle: {
                  color: this.color,
                  width: 2
                },
                areaStyle: {
                  color: '#f3f8ff'
                }
              }
            },
            // data: actualData,
            data: this.chartData.map(x => x.count),
            animationDuration: 2800,
            animationEasing: 'quadraticOut'
          }
        ]
      })
    }
  }
}
</script>
